JIRA: https://jira.spring.io/browse/INT-4172
The `SerializingHttpMessageConverter` which can be customized via `setSupportedMediaTypes()`, but at the same time `canWrite(Class<?> clazz, MediaType mediaType)` consult only default `APPLICATION_JAVA_SERIALIZED_OBJECT`
The target application really may face different media types for the `Serialized` objects not just built-in `application/x-java-serialized-object`
Since we can customize `SerializingHttpMessageConverter` via `setSupportedMediaTypes()` that will be fully consistent to consult `canWrite(mediaType)`
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